body{
	    width: 100%;
    height: 100%;
    background-color: #F2F2F2;
    margin: auto;
    font-family: "微软雅黑";
}

.return {
    width: 100%;
    height: 1.3rem;
    background-color: #87E1D5;
    position: relative;
}
.return>.img_1 {
    margin-top: 0.5rem;
    width: 0.3rem;
}
.return>b {
    font-size: 0.5rem;
    position: absolute;
    margin-left: 34%;
    margin-top: 4%;
}